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"I shed a tear the other night and I was told the Queen shed a few tears as well," he told a news conference on Thursday.

Neeson is the voice of the lion Aslan in the movies, based on the children's classics by C.S. Lewis.

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The first Narnia picture, "The Lion, the Witch and the Wardrobe," came out in 2005 and took in $745 million in global ticket sales. The followup, "Prince Caspian," came out in 2008 and did a somewhat disappointing $420 million.

There are seven books in the series, and producer Mark Johnson said he hopes to keep the franchise going.

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"It's certainly no secret that we'd like to make one more, and actually, we'd like to make several more," he said.